The usage or vocabulary that is characteristic of a specific group of people.
The immigrants spoke an odd dialect of English.
2) Idiom NounIdiomatic Expression, Phrasal Idiom, Phrase, Set Phrase
An expression whose meanings cannot be inferred from the meanings of the words that make it up.
What - interrogatively; "What should I say?".
You - Used to refer to the one ; "You should feel shame".
Button - provide with buttons; "Button the missing button".
Button - fasten with buttons; "Don`t button".